Peningkatan Kemampuan Pemahaman Matematis dan Self Confidence Melalui Pembelajaran Kooperatif Tipe Group Investigation pada Siswa Sekolah Dasar

Abstract

This study aims to analyze the increase in students' mathematical understanding ability and self-confidence as a result of the application of group investigation type cooperative learning. This research is quasi-experimental research, with the design used being "nonequivalent groups pretest-posttest design". The sample in this study were all fifth-grade students at one of the public elementary schools in Sumedang Regency. The instruments used in this study were a test of mathematical understanding ability and a Likert scale questionnaire to analyze students' self-confidence. Statistical analysis used in this study was independent sample t-test, Mann-Whitney U, one-way ANOVA, and two-way ANOVA. The results of this study indicate that when viewed based on learning factors, there are differences in the increase in mathematical understanding abilities and self-confidence between students who study with group investigation type cooperative learning compared to students who learn by direct learning; there is no interaction effect between learning factors and early mathematical ability factors; there is a difference in the effect of increasing students' mathematical understanding abilities who study with group investigation type cooperative learning in terms of students' initial mathematical abilities (high, medium, and low).